1 /*
2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #include "core/svg/SVGMPathElement.h"
23
24 #include "core/XLinkNames.h"
25 #include "core/dom/Document.h"
26 #include "core/svg/SVGAnimateMotionElement.h"
27 #include "core/svg/SVGDocumentExtensions.h"
28 #include "core/svg/SVGPathElement.h"
29
30 namespace WebCore {
31
SVGMPathElement(Document & document)32 inline SVGMPathElement::SVGMPathElement(Document& document)
33 : SVGElement(SVGNames::mpathTag, document)
34 , SVGURIReference(this)
35 {
36 ScriptWrappable::init(this);
37 }
38
DEFINE_NODE_FACTORY(SVGMPathElement)39 DEFINE_NODE_FACTORY(SVGMPathElement)
40
41 SVGMPathElement::~SVGMPathElement()
42 {
43 #if !ENABLE(OILPAN)
44 clearResourceReferences();
45 #endif
46 }
47
buildPendingResource()48 void SVGMPathElement::buildPendingResource()
49 {
50 clearResourceReferences();
51 if (!inDocument())
52 return;
53
54 AtomicString id;
55 Element* target = SVGURIReference::targetElementFromIRIString(hrefString(), treeScope(), &id);
56 if (!target) {
57 // Do not register as pending if we are already pending this resource.
58 if (document().accessSVGExtensions().isElementPendingResource(this, id))
59 return;
60
61 if (!id.isEmpty()) {
62 document().accessSVGExtensions().addPendingResource(id, this);
63 ASSERT(hasPendingResources());
64 }
65 } else if (target->isSVGElement()) {
66 // Register us with the target in the dependencies map. Any change of hrefElement
67 // that leads to relayout/repainting now informs us, so we can react to it.
68 document().accessSVGExtensions().addElementReferencingTarget(this, toSVGElement(target));
69 }
70
71 targetPathChanged();
72 }
73
clearResourceReferences()74 void SVGMPathElement::clearResourceReferences()
75 {
76 document().accessSVGExtensions().removeAllTargetReferencesForElement(this);
77 }
78
insertedInto(ContainerNode * rootParent)79 Node::InsertionNotificationRequest SVGMPathElement::insertedInto(ContainerNode* rootParent)
80 {
81 SVGElement::insertedInto(rootParent);
82 if (rootParent->inDocument())
83 buildPendingResource();
84 return InsertionDone;
85 }
86
removedFrom(ContainerNode * rootParent)87 void SVGMPathElement::removedFrom(ContainerNode* rootParent)
88 {
89 SVGElement::removedFrom(rootParent);
90 notifyParentOfPathChange(rootParent);
91 if (rootParent->inDocument())
92 clearResourceReferences();
93 }
94
isSupportedAttribute(const QualifiedName & attrName)95 bool SVGMPathElement::isSupportedAttribute(const QualifiedName& attrName)
96 {
97 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
98 if (supportedAttributes.isEmpty()) {
99 SVGURIReference::addSupportedAttributes(supportedAttributes);
100 }
101 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
102 }
103
parseAttribute(const QualifiedName & name,const AtomicString & value)104 void SVGMPathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
105 {
106 SVGParsingError parseError = NoError;
107
108 if (!isSupportedAttribute(name)) {
109 SVGElement::parseAttribute(name, value);
110 } else if (SVGURIReference::parseAttribute(name, value, parseError)) {
111 } else {
112 ASSERT_NOT_REACHED();
113 }
114
115 reportAttributeParsingError(parseError, name, value);
116 }
117
svgAttributeChanged(const QualifiedName & attrName)118 void SVGMPathElement::svgAttributeChanged(const QualifiedName& attrName)
119 {
120 if (!isSupportedAttribute(attrName)) {
121 SVGElement::svgAttributeChanged(attrName);
122 return;
123 }
124
125 SVGElement::InvalidationGuard invalidationGuard(this);
126
127 if (SVGURIReference::isKnownAttribute(attrName)) {
128 buildPendingResource();
129 return;
130 }
131
132 ASSERT_NOT_REACHED();
133 }
134
pathElement()135 SVGPathElement* SVGMPathElement::pathElement()
136 {
137 Element* target = targetElementFromIRIString(hrefString(), treeScope());
138 return isSVGPathElement(target) ? toSVGPathElement(target) : 0;
139 }
140
targetPathChanged()141 void SVGMPathElement::targetPathChanged()
142 {
143 notifyParentOfPathChange(parentNode());
144 }
145
notifyParentOfPathChange(ContainerNode * parent)146 void SVGMPathElement::notifyParentOfPathChange(ContainerNode* parent)
147 {
148 if (isSVGAnimateMotionElement(parent))
149 toSVGAnimateMotionElement(parent)->updateAnimationPath();
150 }
151
152 } // namespace WebCore
153